Help regarding shell script


 
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# 15  
Old 02-02-2011
Hi,

After running the code as you have sent I get the following output. I have attached the code too below. Sorry for the inconvenience since I'm a newbie to this Smilie

Hi,

I tried as you have mentioned but I get something of this format in the output

OUTPUT
Code:
$ ./lan.sh -->
         3     #
       RUN     #
     a.ksh     #
     a.txt     #
ktrace.out     #
    lan.sh     #
        lp     #
  msa.ksh     #

and this was the code I put in the script lan.sh
Code:
[#!/bin/sh
ls -n $@ | awk 'function max(a,b) {return a>b?a:b}
function toend(str,fld)
{ for(i=0; i<length(str); i++) {
    while(substr(str,i,1) != " " && i<length(str)) i++
    while(substr(str,i,1) == " " && i<length(str)) i++
    if (!--fld) return substr(str,i)
  }
  return ""
}
FNR==1 {file++}
file==1 {g[$3]=$1;GW=max(GW,length($1));next}
file==2 {p[$3]=$1;PW=max(PW,length($1));next}
{ split($0, L, " ")
  printf "%10s %3s %-*s %-*s %11s %s\n", L[1], L[2], PW, p[L[3]], GW, g[L[4]], L
[5], toend($0,5)
}' FS=: /etc/group /etc/passwd -

Appreciate your help in this matter.

---------- Post updated 02-02-11 at 04:42 PM ---------- Previous update was 02-01-11 at 09:27 PM ----------

Hi,

The following is the output I get after running the code. I get blank spaces in the output. Can you please help me on this?
Code:
[$ ./list.sh
     total  56
-rwxrwxr-x   1                              284 Feb 02 11:08 app
-rwxrwxr-x   1                              284 Feb 02 09:28 list
-rwxrwxr-x   1                              168 Jan 27 14:31 desk
-rwxrwxr-x   1                              668 Feb 02 09:24 lan.sh


Last edited by Scott; 02-02-2011 at 07:01 PM..
# 16  
Old 02-02-2011
It's not finding UID and GID in the passwd/group files, perhaps you're using yellow pages (NIS) for the users and groups?

If so you may need to fetch the group and passwd files from NIS first:
Code:
#!/bin/sh
cp /etc/group /tmp/lan.group.$$
ypcat group >> /tmp/lan.group.$$
cp /etc/passwd /tmp/lan.passwd.$$
ypcat passwd >> /tmp/lan.passwd.$$
ls -n $@ | awk 'function max(a,b) {return a>b?a:b}
function toend(str,fld)
{ for(i=0; i<length(str); i++) {
    while(substr(str,i,1) != " " && i<length(str)) i++
    while(substr(str,i,1) == " " && i<length(str)) i++
    if (!--fld) return substr(str,i)
  }
  return ""
}
FNR==1 {file++}
file==1 {g[$3]=$1;GW=max(GW,length($1));next}
file==2 {p[$3]=$1;PW=max(PW,length($1));next}
{ split($0, L, " ")
  printf "%10s %3s %-*s %-*s %11s %s\n", L[1], L[2], PW, p[L[3]], GW, g[L[4]], L
[5], toend($0,5)
}' /tmp/lan.group.$$ /tmp/lan.passwd.$$ -
rm /tmp/lan.group.$$ /tmp/lan.passwd.$$


Last edited by Chubler_XL; 02-02-2011 at 10:35 PM..
# 17  
Old 02-02-2011
Hi,

I tried from putty and this was the output I got:
Code:
ypcat: no such map passwd.byname. reason: Request arguments bad
./san: 4: Syntax error: "(" unexpected

Thanks
Mike

Last edited by Scott; 02-04-2011 at 01:03 PM.. Reason: Code tags
# 18  
Old 02-02-2011
OK looks you aren't using yellow pages then, are you sure when you got the output in post 15 your code is exactly as shown in post #15 except without the [ at the front?

Missing the FS=: on the last line would have caused this. You could also try this (just incase your awk dosn't support FS= following the main code:


Code:
#!/bin/sh
ls -n $@ | awk -F: 'function max(a,b) {return a>b?a:b}
function toend(str,fld)
{ for(i=0; i<length(str); i++) {
    while(substr(str,i,1) != " " && i<length(str)) i++
    while(substr(str,i,1) == " " && i<length(str)) i++
    if (!--fld) return substr(str,i)
  }
  return ""
}
FNR==1 {file++}
file==1 {g[$3]=$1;GW=max(GW,length($1));next}
file==2 {p[$3]=$1;PW=max(PW,length($1));next}
{ split($0, L, " ")
  printf "%10s %3s %-*s %-*s %11s %s\n", L[1], L[2], PW, p[L[3]], GW, g[L[4]], L[5], toend($0,5)
}' /etc/group /etc/passwd -

# 19  
Old 02-02-2011
I will check that again on server and let you know. And when time permits if you could run through the code about the first part in the for and while loop and the printf statement ( the methodology of using % and the nos) to make the output look that would be great.

Thanks again
Mike
# 20  
Old 02-02-2011
for(i=0; i<length(str); i++) i is a counter that starts at 0 and continues to the end of the string (step thru string 1 char at a time).

while(substr(str,i,1) != " " && i<length(str)) i++Jump over all characters till a space is found, this jumps past 1 field
while(substr(str,i,1) == " " && i<length(str)) i++Jump over all space characters this jumps past the blanks following a field
if (!--fld) return substr(str,i) decrement field count and if it's now zero return the rest of the string.


%10s = right justified string 10 chars wide
%3s = right justified string 3 chars wide
%-*s = left justified string where width is parameter before string value
%s = string with no width limit

You can check man printf for more details on how it works.
# 21  
Old 02-04-2011
Mike what OS are you using? What does this command give:
Code:
grep -E "^passwd|^group" /etc/nsswitch.conf

Do you have getent?
Code:
which getent

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